Web service "secret" messaging and files

Question

Computer networks

Is there a web service that allows you to exchange messages and files that are encrypted on the client side and stored on servers in encrypted form?

It is desirable that no traces remain on the computer where the service is used.

I googled all over but couldn't find anything like it. Thank you.

Answer 1

QiP +

Answer 2

So that messages are encrypted and stored on the server - I don’t know such a ready-made solution. But you can do it yourself, in theory - in your Jabber server, set up the storage of history on the server.
You can use PGP to exchange client-encrypted messages. Or there is an even simpler one - OTP technology, which works out of the box in Adium (Mac) and after installing the plugin in Pidgin. In this case, you generate the keys yourself, the server cannot decrypt the messages.

Answer 3

no. In the original language, this is OTR (Off-the-Record): www.cypherpunks.ca/otr/